The U.S. and 11 other Pacific nations trying to hammer out a trade agreement notched progress in high-level talks but face a renewed mix of thorny issues complicated by election seasons in the U.S. and Canada.

Global investment banks got a second-quarter revenue boost from a surge in Asian stock trading. But given China’s market volatility and stock declines in some other countries, those revenue gains may be hard to replicate.

Confusion emerged in the sprawling multinational investigation into debris suspected to be linked to Malaysia Airlines Flight 370, as officials offered contradictory statements about a plane piece that washed ashore last week.